Diaphragm horn



G. J. SEISS.

DIAPHRAGM HORN.

APPLICATION FILED MAY 7, I92I.

Patented Nov. 14, 1922.

`encarar: a. snrss, 0F rompo, omo.`

v DIAPHRAGM HORN.

Application mea 'May 7,

To all whom t may concern: f

Be it known that I, GEORGE J. Snrss, a citizen of the United States, residing at Toledo, inthe county'of Lucas and State of` Chio, have invented a certain new and .use-

ful Improvement in Diaphragm Horns, of.

which the following is a specification.

My invention relates to that class of alarm signals which employ a vibrating diaphragm actuated by the rotation of a toothed wheel, the teeth of which engage a wearing piece secured to the center of the diaphragm.

My invention has for its object to provide a construction for a device of this char-- acter which will permit the assembling of the entire operating mechanism before it is placed in the body of the horn, and has. for

its further object to provide mountingv means for the horn which are engaged by the securing means which hold `the operative parts together.

My invention has for its further object to overcome unnecessary rattling of the parts when in use, and has for its further.' obj ect to provide a construction for the horn 'body which will prevent water from enter'- ing the interior thereof.

@ther objects will appear from the hereinafter contained description.

My means of accomplishing the foregoing.

objects may be more lreadily understoodby ,l

having reference to the accompanying drawings, which are hereunto annexed and are a part of this specification, in which:

F ig. 1 is vertical sectional view of a horn constructed in accordance with my invention.

Fig. 2 is a section taken on the line 22l in Fig. 1.

Fig.' 3 is a rear view of thehorn showing the horn support. f

Fig. 4 is a fragmentary detail view of thel mechanism supporting frame, showing the manner of holding` the pivots for the segment.

Fig. 5 isv a detail view showing a `modified forni of construction.

Similar reference numerals refer to simi lar parts throughout the entire description.

-convenient manual operation.

vincreasing the ybearing surface for'the 1921. Serial'No. 467,721.

A s shown in the drawings, the horn comprises a cylindrical lbodyv 10, which is formed 1n. two portions, one of which contains the diaphragm 11, which `hasthewear-piece 12, secured in the centery by means of av nut -v 13, inthe usual manner. vThe other portion contains the mechanism for1vibrating the diaphragm.

In my invention, the voperating vlmecha` nism is mounted in a U-shaped., frame 4, whichpis clearlv seen in Fig. 2 and as shown hastwo arms 15 and 16, in fthe ends of which is iXedly mounted ashaft 1.7, which hasa toothed wheel 18, rotatablymounted thereon. A pinion '19, is secured to the.

wheel 18, although the ball.- clutch mec-ha-vv f any other suitable release' mechanism, may

be employed if desired. p In the rear 21l ofthe frame 4, is mounted a pin orpivot 22, uponwhich swingsa gear segment 28,. the teeth' 24 of `which are'in mesh rwith kthe teeth of the pinion 19. The segment23 is oscillated uponrits pivot 22 by an actuating rod 25, whichfis secured. thereto. by. a .pin 26, mounted in the gear segment 23,- adjacent its pivot 22. The upper end 127,v of the actuating rod 25 extends through anopen-Y ing 2,8, formed in thewallof the body portion and is provided witha .button 29, for In .order to]` prevent the entrance of water .through the opening 28, I form it with an annular lip or flange 30 whic'hhasthe addedeffect of ciprocation of the rod 25. f l

The inner end 31,l of the actuating` rod .25, is provided with an extension ,which terminates in a hook'32 whichvisadapted to engage one end of aeoi'l spring 34.-, the other end of which is secured to a lug, which projects 'from the wall of thebody portion. y The coil spring 34:, serves two purposes, .first its, function isto hold` the v'actuating rod 2'5 normally in a projected position and to f `return `it automaticallywhen it has been depressed; the other, is to prevent the rod r from rattling against the edge of the open-fy `ing 28. It is necessary for the rod 25 'tol have a free movement and as a consequence, an annoying rattle is produced by the rod striking against the edge of the opening 28; but in the construction I have described, the spring 34, eXerts just enough pressure to prevent the rattle, without interfering with the free movement of the rod.

Screw t-hreaded openings 35 and 36 are provided in the arms 15 and 16, adjacent the ends of the shaft 17, and adapted to register with openings 33 and 39, formed in the rear body portion which latter are adapted to register with the openings 4.() and 41, formed in the wall of the forward body portion. u

The horn is carried by a supporting frame 42, which is provided with two arms and 44, which are bent to coincide with the curve of the body portion and are provided with openings 45y and 46, to receive the securing screws 47 and 48.

rThe frame 42 has a central member 49. which engages the lower part of the wall lof the body portion thus preventing its rocking.

In assembling the horn, the pinion 19 is secured to the wheel 13, and' the two are then slipped' on the shaft 17. A shoulder is necessary to prevent the lateral movement of the wheel 18, and I have found an inexpensive means of forming one by placing a. piece of tubing 50, over thel shaft 17, of the proper' length toV hold the wheel 18. in the proper position. The shaft is then fastenedA in the ends of the arms 15 and 16, of the fra-me 4. The gear segment 23, is then placed in position and the pivot pin 22, inserted in its place, which is formed by a recess cast or punched in the rear wall of the frame 4. The actuating rod 25 is then secured to the gear segment 23, by means of the pin 26. The mechanism is now ready for mounting in the body portion. This is done by passing the endv of the rod 25, through the opening and sliding the frame 4, back until its rear abuts against the end 52, of the cylindrical body portion when a securing screw 53, is secured into the frame, thus serving to hold the frame 4 in position and also to prevent, by the projection of its inner end, any dislodgment of the pin 22.

The coil springy 34, is then hooked tothelug and its lower end caused to engage the hook 33, on the end of the rod 25. rlhe forward body portion is then telescoped into the rear body portion until the openings 35, 36, 45 and 46, are all in register when the supporting frame 42, is placed in position and the securing screws 47 and 43- are screwed in position, holding all parts rigidly and securely together.v The button 29, is then secured to the rod 25, and the horn is ready for use. 1t' willbe seen from the foregoing that the diiiicult work of assembling the operative mechanism can all be done prior to its installation in the body of. the horn.

Having described my invention what I regard as new and desire to secure by Letters tatent is:

l. The combination with a cylindrical body formed in two parts, of a U-shaped mechanism supporting frame, secured to the rear and side walls, the rear wall of the frame having a recess stamped therein, a pivot in said recess, a gear segment mounted on said pivot, the securing means in the end wall operating to prevent the longitudinal movement of the pivot, a shaft .fiXedly secured to the ends of said frame, a toothed wheel rotatably mounted on said shaft, a

pinion secured to said wheel, the teeth ofv said pinion meshing with the teeth on said segment, means to move said segment from outside of said body, and means toy automatically return said segment toits normal position.

body of a U-shaped mechanism supporting frame secured to the rear and side walis of said body, a` pivot mounted in the rear wall of the frame, means to prevent the longif tudinal movement of said pivot, a gear segment mounted on said pivot, a shaft ixedly secured in the ends of said frame, a toothed wheel rotatably mounted on said shaft, a'y pinion rotatably mounted on said shaft, saidv pinion being secured to the toothed wheel, the teeth of the pinion meshing with the teeth on the segment, a verticalvr rod to move said segment from outside of said body and means to normally hold said rod projected outwardly.

3. The combination with a cylindrical body formed in two parts, of a mechanism supportin frame, means to secure said frame to the side and end walls of said iody, a

' gear segment pivoted to said frame, a shaft iixedly secured to the ends of said frame, a toothed wheel rotatably mounted on said shaft, a pinion rotatable on said shaft, said pinion being secured tosaid wheel, the teeth of said pinion meshing with the teeth on said Segment, means to move said segment from outside of said body, and means to automatically return said segment to its normal position.

4. The Acombination with a cylindrical body formed in two parts, `of a- U-shaped mechanism supporting frame, a gear segment, there being a recess in the' rear of said framey a pivot mounted in said recessy upon which the segment oscillates, a shaft fiXedly secured to the ends of said frame, a toothed wheel rotatably mounted on said shaft, a pinion rotatably mounted on said shaft, means to cause the movementv of said pinion in one direction to rotate the toothed wheel but not in the other, the teeth of said 2. rlhe combination with a cylindricalr pinion meshing with the'teeth on vsaidyseg-A ment, a vertical rod which oscillates-'saidseg-fv ment from outside of said body, and means to automatically return said segment toits normal position, means to secure said frame in the interior of. one of the body portions, said means passing through both body portions, a diaphragm secured atv one end of one of the cylindrical body portions, a wear piece thereon which is engaged by the' teeth of the Wheel. Y

6. The combination with a cylindrical body formed in two parts, of a supporting- 'frame having two upwardly extending arms, the arms of which are fitted to and coincide with the periphery of the cylindrical body, means to clamp the supporting frame, body portion and mechanism supporting frame, rigidly together.

7. The combination with a cylindrical.

body, of a mechanism supporting frame, a

gear segment pivoted to said lframe, a shaft ixedly secured to the ends of said frame, a toothed wheel rotatably mounted o-n said shaft, a tube mounted on said shaftJ the end of which abuts against the wheel, a pinion secured to said wheel, the teeth of said pin-` ion meshing with the teeth on said segment, means to move said segment from outside of said body, and means to automatically return said segment toits normal position.V

8. The combination with a cup-shaped body portion, a diaphragm closing the open end thereof, a wear-piece in the center of the diaphragm, a gear segment, the teeth of which engage said wear-piece, a pivot secured to the rear wall of the cup-shaped portion on which said segment swings, an actuating rod pivotally secured to said segment adjacent the pivot pin, said rod extending to the exterior of the cup-'shaped portion, a button on the end of said rod, a coil-spring intermediate the end of the rod and the wall of the body portion. v

9. The combination with a cylindrical body formed in two parts, of a mechanism supporting frame, means to secure said frame to the side and end walls of said body, a gear segment pivotedto said frame,

a shaft iixedly secured to the ends of said iframe, a toothed wheel rotatably mounted on said shaft, a pinion secured to said wheel,

the teeth of said pinion meshing with the f teeth on said segment, a vertical rod pivotally` attached to said segment, `which :rodexe i tends :through they top Coi" :the body portion, an extension ontheinnerend of said rod, a

coil (spring, one'end of whichvv is secured` to the topy of thecylindrlcal body, the other en-l gagingthesaidy extension, said; spring 'operating to` automatically return to its normal position.=

y1.1.0.. .The v lCombination:l i, au

body -formed lin two parts, of a mechanism supporting frame, a gear segment pivoted to said frame, 'a shaft'iixedly secured to the ends of said frame, a toothedwheel rotatsaid segment ably mounted on lsaid shaft, a pinion/secured to said wheel, the teeth of said pinion meshing Awith the teeth on said segment, and

means to automatically return said segment to its normal position, there being an` opening in the top of said body, a vertical actuating rod which .extends through. said opening to the outside ofthe cylindrical body and means to piyotally connect said rod to said segment adjacent its pivot pin.

ll. The combination with a cylindricall body formed inv two parts, of a mechanism supporting frame, means ,to secure said frame to the side and end wallsoif' ys'aidbody,

a gear segmentpivoted tosaid ra'me,.a shaft ixedly secured to the ends of saidfframe, a toothed wheel rotatably mounted on said shaft, `a pinion secured to said wheel, the

teeth lof .said pinion meshing with `the teeth y on said segment, a vertical rod pi'voted to said segment, an extension on theinner end of i said rod, a coil spring,vone end of whichis secured to the top of the cylindrical body,

theother engaging the said extension, `said spring operating to `hold said rodlnor'mally ina projected position .and to cause apres--y `sure Vof the side of the-rod against the` edge of the opening, and means to automatically return said segment 'androd to its normal position. H

l2. The 'combination with a cylindrical bodyA formed in twoparts, of a Ueshaped mechanism supporting frame, algear "segment pivoted to said frame, a shaftl fixedly secured to the ends of 'said frame, a toothed y wheel rotatably mounted on said shaft, a pinion secured to said wheel, the teeth ofv said pinion meshing with 'the teeth on said segment, there being an opening in the said body, a lip around said opening, a Vertical actuating rod which extends through said opening to the outside of' the cylindrical body and pivotally` connected to said seg-- ment` adjacent its pivot pin.

13. The combinatlon wi y body formed in two parts which telescope each other adjacent the'V longitudinal center, lof a .Ushaped mechanism supporting th av cylindrical i l 'i frame, means tosecure said frame to the` side-and end walls of said body, a geary segment, a pivot mounted in a recess -formed in the rear of vsaid frame on whlch said 'Jai segment is mounted, a shaft fixedly secured to the ends of said frame, a toothed. Wheel rotatably mounted on said shaft, a pinion secured to said Wheel, the teeth` o' said pinion meshing with the teeth on said segment, a pivoted-vertical rod to move said segment from outside of said body, an exten'- sion on the inner end of said rod, a coil spring, one end of which is secured to the top of the cylindrical body, the other engauging the said extension, said spring operating to holdsaid rod'normally in a projected position, and to `cause a pressure of the side orn the rod against the edge of the opening, a button on the end of said rod. A

In testimony whereof, I have signed the foregoing specification.

GEGRGE J. EISS.v 

